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VOIP Over EV-DO Rev. A Put To Test

Article Comments  6  

Jun 8, 2006, 1:32 PM   by (staff)

Qualcomm yesterday announced it had successfully tested making calling using Voice over IP (VOIP) on a CDMA EV-DO Revision A network. The tests involved 62 simultaneous calls in a single 1.25 MHz channel using SIP-based voice clients. SIP is a common VOIP protocol used by many internet phones including those running Gizmo Project. Qualcomm and CDMA operators are looking to VOIP because when a channel is used for EV-DO data, it cannot be used for voice calls. Not only would VOIP over Revision A networks allow carriers to use their spectrum more efficiently by not having to separate voice and data, it would increase efficiency by allowing them to carry more voice calls in a data channel than in a traditional voice channel. Qualcomm was able to squeeze up to 30 times more voice calls in a 1.25 MHz channel using VOIP than traditional voice connections in their test.

more info at Qualcomm »



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Subject Author Date
So The Envisionaries Are Getting Closer! maxrebo Jun 11, 2006, 7:23 PM
Its about simplifying the core network viper Jun 9, 2006, 10:24 AM
Strange evilbstrd666 Jun 8, 2006, 4:06 PM
  • Re: Strange by bones boy   Jun 8, 2006, 5:14 PM
  • Re: Strange by RUFF1415   Jun 8, 2006, 6:58 PM
  • Quality by Rich Brome   Jun 8, 2006, 7:20 PM
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